Github user rxin commented on a diff in the pull request:
https://github.com/apache/spark/pull/7850#discussion_r36038834
--- Diff:
sql/catalyst/src/main/scala/org/apache/spark/sql/catalyst/expressions/stringOperations.scala
---
@@ -597,6 +597,23 @@ case class FormatString(children: Expression*) extends
Expression with ImplicitC
}
/**
+ * Returns string, with the first letter of each word in uppercase,
+ * all other letters in lowercase. Words are delimited by whitespace.
--- End diff --
since you need to fix python, please also update documentation here to
"remove all other letters in lowercase".
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